Raw vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-24955 is a high-severity Code Injection (CWE-94) vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 7.2 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Junk Data (T1001.001); ranked in the top 0.3% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
Microsoft SharePoint Server contains a remote code execution vulnerability tracked as CVE-2023-24955 and assigned CWE-94. The flaw permits an attacker to inject and execute arbitrary code on affected SharePoint installations. It carries a CVSS 3.1 base score of 7.2 reflecting network attack vector, low complexity, and the requirement for high privileges.
An authenticated user with administrative rights can send a crafted request over the network to achieve full code execution, resulting in complete compromise of confidentiality, integrity, and availability on the SharePoint server. No user interaction is required and the attack does not cross trust boundaries.
Microsoft’s advisory at msrc.microsoft.com directs administrators to apply the security update released for supported SharePoint Server versions. CISA has added the CVE to its Known Exploited Vulnerabilities catalog, indicating that federal agencies must remediate according to the published deadlines.
The vulnerability maintains a high EPSS score of 0.9179, consistent with observed in-the-wild exploitation activity.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-28942
Vulnerability Data
Microsoft SharePoint Server Remote Code Execution Vulnerability
- CWE(s)
- KEV Date Added
- 26 March 2024
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.3.1
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
PR.PS-06's SDLC practices directly target injection flaws via secure coding and testing (mostly), yet as a single broad outcome it leaves many code-generation specifics unaddressed (partial).
PR.DS-10 protects runtime data confidentiality/integrity but has no bearing on neutralizing externally influenced input during code generation, so neither direction shows any preventive effect.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.